Cast-plate wheel sob



VII. E. WILLIAMS.

CAST PLATE WHEEL FOR AUTOMOBILES.

APPLICATION FILED DEC. 5. I919.

Iatemted Bee. 7, 1929..

UNITED STATES WILLIAM ERASTUS WILLIAMS, OF CHICAGO, ILLINOIS.

CAST-PLATE WHEEL FOB AUTOMOBILES.

Application filed December 5, 1919.

To all whom it may concern:

Be it known that I,W1LLIAM ERASTUS WIL- LIAMS, a citizen of the United States, a resident of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Cast-Plate Wheels for Automobiles, of which the following is a specification.

My invention relates to wheels that are used for automobile trucks and other purposes, and has for its object the production of a light, very strong, and cheaply made cast wheel, that will stand up in service and be free from the shrinkage cracks and internal strains involved in casting disk wheels.

The invention is set forth in the claims.

Reference will be had to the accompanying drawings in which Figure 1 is a front elevation of the wheel.

Fig. 2 is a transverse sectional elevation of the wheel on a larger scale of one-half.

In the drawings 1 indicates the hub of an ordinary wheel, here shown as the rear or drive wheel of an automobile truck. 2 shows the hub cap of ordinary construction, which houses in the front end of the hub. 3 indicates the barrel section of the brake drum or sprocket drum, as the case may be, the main part of which is not here shown.

l indicates the vertical flange of the brake drum, by means of which it is fastened to the main body of the wheel. This flange is substantially in the same form as when required to be used with a wooden spoked wheel.

5 indicates the main plate disk of the wheel which has near the hub an integral, outwardly convex zone 6 continuous with a wider outwardly concave zone, the two forming the normally visible, substantially smooth face of the wheel disk. This disk is integrally connected to the outer marginal, or end, portion of a cylindrical rim which for lightness and to facilitate casting is made up of an annular central section 7, an analogous front section 8, and a similar rear section 9, the three being separated by wide spaces 11 bridged at intervals by bars 10. The rim, hub, and disk are further integrally connected by a series of reversely curved webs 12, 14, arranged spoke-like, each of Specification of Letters Patent.

Patented Dec. *7, 1920.

Serial No. 342,579.

which is cut away at 13, 15, alongside the disk to allow cooling without shrinkage cracks or dangerous strains, while at the same time all the parts are mutually supporting.

The webs are marginally cut away to receive the brake drum which encircles shoulders 18 and is held laterally against the webs by bolts 17 passing through bosses 16. The shoulders make shifting of the axis of the drum impossible.

What I claim is 1. In a wheel of the class described, a hub joined to the outer end portion of a concen tric cylindrical rim by a transverse reversely curved disk and by radial reversely curved webs integral with rim, hub and disk, but having a portion removed alongside the disk to allow safe contraction in cooling.

2. In a wheel of the class described, a main supporting disk having both concave and convex outer faced zones with radially curved stiffening flanges on the inside or inner side of the wheel.

8. In a wheel of the class described, a main supporting disk for the web having both concave and convex zones merging into each other in the form of reversed curves, together with radially extending stiifening braces or flanges cast integral with the body of the disk and provided with open spaces a part of the distance between the body of the flanges and the body of the disk.

4:. In a wheel of the class described, a main tread portion having apertures therein, and with the apertures bridged across at intervals by means of circumferentially extending flanges and curved radially disposed stiffening flanges also bridged across, and binding together the several sections of the mm.

5. In a wheel of the class described, a main plate disk having a convex zone and a concavezone and connected to the rim in the region of one edge thereof, with radially 'curved supporting flanges on both sections or regions of the said disk, thesaid flanges cut asunder part of the distance from the disk, and the said flanges bracing the other edge of the rim opposite the edge whereat the disk is connected.

6. A wheel of the class described having a cylindrical rim connected to the hub both by Signed at Chicago, in the county of Cook a transverse reversely curved disk and a seand State of Illinois, this twentieth day of ries of approximately radial reversely curved November, 1919.

Webs, upon the inner normally hidden side, WlLLIAM ERASTUS WILLIAMS. of the disk,- marginally notched to receive Witnesses: a brake drum, and integral with the hub, J. B. JEFFERSON,

rim, and disk. B. J. BERNHARD. 

